The U.S. Postal Service will unveil its “Know the Facts About Fentanyl” semipostal stamp at a first-day-of-issue ceremony Tuesday, Oct. 6, at 11 a.m. at the National Institutes of Health’s Masur Auditorium in Bethesda, with proceeds directed to fentanyl research and awareness efforts. The event will feature USPS Government Relations and Public Policy Vice President […]